Engine vibration balancer

Details Engine vibration balancer Engine vibration balancer

1988-10-05

1990-05-22

Kamen, Noah P.

Internal-combustion engines

Vibration compensating device

123192R, 74604, F02B 7506

Patent

active

049268104

ABSTRACT:
An automotive engine crankshaft has a pair of vibration balancing masses pivotally secured to and depending from a main bearing cap for oscillatory movements in response to being driven by contoured cam wheels on the cheeks of the crankshaft, the cam wheels engaging rollers or cam follower sliding shoes on a bell crank type balancing mass, the vertical movements of the balancing mass centers providing forces in direct opposition to the forces caused by the engine second order vertical shake unbalance, to cancel the same.

REFERENCES:
patent: 1640634 (1927-08-01), Wise
patent: 2235160 (1941-03-01), Ljungstrom
patent: 3468190 (1969-09-01), Sampietro
patent: 4688528 (1987-08-01), Nivi et al .
patent: 4781156 (1988-11-01), Berger et al.

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